crack /ˈkræk/
 裂縫,縫隙;爆裂聲,破裂聲(vt.)使發出爆裂聲;使破裂,使爆裂(vi.)發出爆裂聲


 crack /ˈkræk/ 名詞
 裂縫,裂化


 Crack v. t. [imp. & p. p. Cracked p. pr. & vb. n. Cracking.]
 1. To break or burst, with or without entire separation of the parts; as, to crack glass; to crack nuts.
 2. To rend with grief or pain; to affect deeply with sorrow; hence, to disorder; to distract; to craze.
    O, madam, my old heart is cracked.   --Shak.
    He thought none poets till their brains were cracked.   --Roscommon.
 3. To cause to sound suddenly and sharply; to snap; as, to crack a whip.
 4. To utter smartly and sententiously; as, to crack a joke.
 5. To cry up; to extol; -- followed by up. [Low]
 To crack a bottle, to open the bottle and drink its contents.
 To crack a crib, to commit burglary. [Slang]
 To crack on, to put on; as, to crack on more sail, or more steam. [Colloq.]


 Crack, v. i.
 1. To burst or open in chinks; to break, with or without quite separating into parts.
    By misfortune it cracked in the coling.   --Boyle.
    The mirror cracked from side to side.   --Tennyson.
 2. To be ruined or impaired; to fail. [Collog.]
    The credit . . . of exchequers cracks, when little comes in and much goes out.   --Dryden.
 3. To utter a loud or sharp, sudden sound.
    As thunder when the clouds in autumn crack.   --Shak.
 4. To utter vain, pompous words; to brag; to boast; -- with of. [Archaic.]
    Ethoipes of their sweet complexion crack.   --Shak.


 Crack, n.
 1. A partial separation of parts, with or without a perceptible opening; a chink or fissure; a narrow breach; a crevice; as, a crack in timber, or in a wall, or in glass.
 2. Rupture; flaw; breach, in a moral sense.
    My love to thee is sound, sans crack or flaw.   --Shak.
 3. A sharp, sudden sound or report; the sound of anything suddenly burst or broken; as, the crack of a falling house; the crack of thunder; the crack of a whip.
    Will the stretch out to the crack of doom?   --Shak.
 4. The tone of voice when changed at puberty.
 Though now our voices
 Have got the mannish crack.   --Shak.
 5. Mental flaw; a touch of craziness; partial insanity; as, he has a crack.
 6. A crazy or crack-brained person. [Obs.]
    I . . . can not get the Parliament to listen to me, who look upon me as a crack and a projector.   --Addison.
 7. A boast; boasting. [Obs.] “Crack and brags.” --Burton. “Vainglorius cracks.” --Spenser.
 8. Breach of chastity. [Obs.]
 9. A boy, generally a pert, lively boy. [Obs.]
    Val. 'T is a noble child. Vir. A crack, madam.   --Shak.
 10. A brief time; an instant; as, to be with one in a crack. [Eng. & Scot. Colloq.]
 11. Free conversation; friendly chat. [Scot.]
    What is crack in English? . . . A crack is . . . a chat with a good, kindly human heart in it.   --P. P. Alexander.


 Crack, a. Of superior excellence; having qualities to be boasted of; as, a crack shot. [Colloq.]
    One of our crack speakers in the Commons.   --Dickens.

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 crack
      adj : of the highest quality; "an ace reporter"; "a crack shot";
            "a first-rate golfer"; "a super party"; "played
            top-notch tennis"; "an athlete in tiptop condition";
            "she is absolutely tops" [syn: ace, A-one, first-rate,
             super, tiptop, topnotch, tops(p)]
      n 1: a long narrow opening [syn: cleft, crevice, fissure, scissure]
      2: a narrow opening; "he opened the window a crack" [syn: gap]
      3: a long narrow depression in a surface [syn: crevice, cranny,
          fissure, chap]
      4: a sudden sharp noise; "the crack of a whip"; "he heard the
         cracking of the ice"; "he can hear the snap of a twig"
         [syn: cracking, snap]
      5: a chance to do something; "he wanted a shot at the champion"
         [syn: shot]
      6: witty remark [syn: wisecrack, sally, quip]
      7: a blemish resulting from a break without complete separation
         of the parts; "there was a crack in the mirror"
      8: a purified and potent form of cocaine that is smoked rather
         than snorted [syn: tornado]
      9: a usually brief attempt; "he took a crack at it"; "I gave it
         a whirl" [syn: fling, go, pass, whirl, offer]
      10: the act of cracking something [syn: fracture, cracking]
      v 1: become fractured; break or crack on the surface only; "The
           glass cracked when it was heated" [syn: check, break]
      2: make a very sharp explosive sound; "His gun cracked"
      3: make a sharp sound; "his fingers snapped" [syn: snap]
      4: hit forcefully; deal a hard blow, making a cracking noise;
         "The teacher cracked him across the face with a ruler"
      5: pass through (a barrier); "Registrations cracked through the
         30,000 mark in the county" [syn: break through]
      6: break partially but keep its integrity; "The glass cracked"
      7: break suddenly and abruptly, as under tension; "The rope
         snapped" [syn: snap]
      8: suffer a nervous breakdown [syn: crack up, crock up, {break
         up, collapse]
      9: tell spontaneously; "crack a joke"
      10: cause to become cracked; "heat and light cracked the back of
          the leather chair"
      11: reduce (petroleum) to a simpler compound by cracking
      12: break into simpler molecules by means of heat; "The
          petroleum cracked"